Down in my personal dungeon, my friend Roxy accompanies me and wants to try out shitting into a slave's mouth. I have a slave for her to release her asshole on, but she can't do it. It's her first time ever, so I show her how this can be done. I sit on my toilet stool and shit through the hole in it, beneath which my slave lies with opened mouth, ready to receive my sweets.
Today Mistress Roberta's slave will do his best to satisfy his goddess during toilet training. His last tries weren't successful enough to make Mistress Roberta happy, and he feels like shit when he knows he's a miserable toilet slave. This time he'll show that he can do better - but he didn't knew that Mistress Roberta is really loaded and has a big pile coming... though he doesn't give up and struggles really hard.